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Author Topic:   tach wiring
Dirt Forum Champ
Total posts: 1565
posted April 03, 2002 11:11 AM UIN: 54865418
on a memory tach do you run the red power wire to a hot wire or off the switch are you suposed to read the max while the car is still running or does it store it thru a constant hot wire that saves it and reads while the motor is shut down?

Dirt Freak

Total posts: 430
posted April 03, 2002 02:04 PM
One wire to the switch one ground wire the other goes to your distributor. The memory will be recalled with the motor off if you turn your switch on.

Dirt Full Roller

Total posts: 66
posted April 03, 2002 05:13 PM
If it is an Autometer tach then their website has wiring diagrams for just about everything they've ever made.

Dirt Freak

Total posts: 273
posted April 03, 2002 05:40 PM
I have a separate "gauge switch"I hooked the light and the red wire to that switch so I could turn it on and off.Hope this helps.

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